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0f7ca6f693
of_irq_parse_one() may use uninitialized variable @addr_len as shown below:
// @addr_len is uninitialized
int addr_len;
// This operation does not touch @addr_len if it fails.
addr = of_get_property(device, "reg", &addr_len);
// Use uninitialized @addr_len if the operation fails.
if (addr_len > sizeof(addr_buf))
addr_len = sizeof(addr_buf);
// Check the operation result here.
if (addr)
memcpy(addr_buf, addr, addr_len);
Fix by initializing @addr_len before the operation.
Fixes:
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.